
Photo: Mark Rober, CC BY-SA 4.0, source
Parent dossier
Mark Rober
- Creators
- Real name: Mark B. Rober
- Exact age not independently verified
- From Orange County, California
Mark Rober is an engineer and inventor who creates viral popular science and DIY gadget videos on YouTube. His career includes significant prior experience designing systems for NASA's Curiosity rover and product development at Apple.
Get the free weekly briefing.
One email a week — what you need to know about your teens world.
Your teen won’t explain it. We will.
By subscribing, you agree that we send your email address to Substack, which delivers the newsletter under its own privacy policy.
Want more? Go paid: $9/month or $75/year.
By the numbers
- YouTube Primary channel83.7M subscribersAs of October 8, 2026 · source
- TikTok @markroberNot independently verified
- Instagram @markroberNot independently verified
- X @MarkRoberNot independently verified
Rounded counts refer to the linked account, not totals across multiple channels. They are reported by the linked sources, not live counters. The source date can differ from our check date.
Claims to fame
Why they’re famous
- Worked as a NASA engineer on the Curiosity rover project.
- Turns engineering experiments into large-scale YouTube demonstrations.
- Founded CrunchLabs, which sells educational build kits.
The appeal
Why teens follow them
The appeal is the educational and highly entertaining breakdown of complex engineering principles through accessible, real-world experiments. It provides inspiration for young viewers interested in STEM by highlighting the joy of invention.
Parent notes
What parents should know
- Treat a spectacular edited experiment as entertainment, not a complete set of instructions. Discuss safe versions before trying anything at home.
- CrunchLabs is a paid product business as well as an educational brand; talk through subscription costs before buying.
- Ask your teen what they think will happen before an experiment, then compare the prediction with the result.
Receipts
Controversies, sourced
No sourced controversy summary is included in this briefing. That is not an endorsement or a claim that none exist.
Checked October 8, 2026
Sources
- Wikipedia (opens in new tab)
- Wikidata: public identity and account identifiers (opens in new tab)
- YouTube: public primary-channel subscriber count (opens in new tab)
Last checked October 8, 2026. Counts show their own as-of dates. “Why teens follow them” is editorial interpretation, not age-demographic research or Lowkey interview testimony. These are parent briefings, not age ratings or endorsements. Facts change; tell us if something is off via contact.
More Creators
Get the free weekly briefing.
One email a week — what you need to know about your teens world.
Your teen won’t explain it. We will.
By subscribing, you agree that we send your email address to Substack, which delivers the newsletter under its own privacy policy.
Want more? Go paid: $9/month or $75/year.